Table 42. System setup options—Pre-boot Behavior menu(continued)
Pre-boot Behavior
By default, the Enable Dock Warning Messages option is enabled.
Fastboot
Fastboot Allows you to configures the speed of the UEFI boot process.
By default, Thorough option is selected. Performs complete hardware and
configuration initialization during boot.
Extend BIOS POST Time
Extend BIOS POST Time Sets the the BIOS POST (Power-On Self-Test) load time.
By default, the 0 seconds option is selected.
Sign of Life
Early Audio Beep Audio sign of life.
By default, the Early Audio Beep option is disabled.
Early Logo Display Display logo sign of life.
By default, the Early Logo Display option is enabled.
Early Keyboard Backlight Keyboard backlight sign of life.
By default, the Early Keyboard Backlight option is enabled.
Table 43. System setup options—Virtualization Support menu
Virtualization
Intel® Virtualization Technology
Enable Intel® Virtualization Technology
(VT)
When enabled, the computer can run a Virtual Machine Monitor (VMM).
By default, the Enable Intel® Virtualization Technology (VT) option is enabled.
VT for Direct I/O
Enable Intel® VT for Direct I/O When enabled, the computer can perform Virtualization Technology for Direct
I/O (VT-d). VT-d is an Intel method that provides virtualization for memory map
I/O.
By default, the Enable Intel® VT for Direct I/O option is enabled.
DMA Protection
Enable Pre-Boot DMA Support Allows you to control the Pre-Boot DMA protection for both internal and external
ports. This option does not directly enable DMA protection in the operating
system.
NOTE: This option is not available when the virtualization setting for IOMMU
is disabled (VT-d/AMD Vi).
By default, the Enable Pre-Boot DMA Support option is enabled.
For additional security, Dell Technologies recommends keeping the Enable Pre-
Boot DMA Support option enabled.
NOTE: This option is provided only for compatibility purposes, since some
older hardware is not DMA capable.
Enable OS Kernel DMA Support Allows you to control the Kernel DMA protection for both internal and external
ports. This option does not directly enable DMA protection in the operating
system. For operating systems that support DMA protection, this setting indicates
to the operating system that the BIOS supports the feature.
NOTE: This option is not available when the virtualization setting for IOMMU
is disabled (VT-d/AMD Vi).
By default, the Enable OS Kernel DMA Support option is enabled.
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